| A | B |
|---|
| solid state | substance has a definite volume and shape. |
| liquid state | substance has definite volume, can change shape |
| gaseous state | substance has no definite volume or shape |
| vapor | can be changed into a liqud by applying pressure alone |
| phase | separate part of of a mixture of substances with different physical/chemical properties |
| change of state | is a physical change from one state to another |
| molten | liquid state of substance , solid at room temperature |
| melting | change of state from solid to liquid, cause usually by heating |
| melting point | temperature at which a solid melts, same as freezing point |
| fusion | change of state from solid to liquid of substance solid at STP |
| boiling | change of state from liquid to gas at boiling point of substance |
| evaporation | change of state from liquid to vapor(gaseous) due to escape of molecules from surface |
| volatile | easily/readily evaporates |
| liquefaction | change of state from gaseous to liquid, caused by cooling & incr. pressure |
| condensation | change of state from gaseous to liquid, normally caused by cooling |
| sublimation | change of state from gaseous directly to solid on cooling |
| Vaporization | any cahnge resulting in gaseous state |
| freezing | change of state from liquid to solid caused by cooling a liquid |
| fluid | substance that will flow |
| ice | melts at 373 K |
